313250320 has 20 divisors (see below), whose sum is σ = 728307180. Its totient is φ = 125300096.

The previous prime is 313250309. The next prime is 313250323. The reversal of 313250320 is 23052313.

It can be written as a sum of positive squares in 2 ways, for example, as 160579584 + 152670736 = 12672^2 + 12356^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (313250323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1957735 + ... + 1957894.

It is an arithmetic number, because the mean of its divisors is an integer number (36415359).

Almost surely, 2^313250320 is an apocalyptic number.

It is an amenable number.

313250320 is an abundant number, since it is smaller than the sum of its proper divisors (415056860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313250320 is a wasteful number, since it uses less digits than its factorization.

313250320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915642 (or 3915636 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 313250320 is about 17698.8790605507. The cubic root of 313250320 is about 679.1470852037.

The spelling of 313250320 in words is "three hundred thirteen million, two hundred fifty thousand, three hundred twenty".